Template:FAQ:Applications 03

There are two main general causes of problems retrieving information from the agent. Firstly, the variable (or variables) specified may not be recognised by the tools as valid names. In this case, the tools will typically reject the request without ever contacting the remote agent.

Alternatively, the tool may be happy with the request, but the agent does not return the corresponding value(s). It may return an explicit error message instead, or the request may time out without any response being sent back at all. The next few entries look at these in more detail.

A simple way to tell which is the case would be to run the command with the command-line option '-d'. If this displays a dump of the packet, then the request is failing at the agent end. If not, then it's the client-side which is dropping the request.